:root{--green:#155b45;--ink:#12201a;--paper:#f6f4ed;--line:#d9d6ca;--orange:#ff7043}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;color:var(--ink);background:var(--paper)}button,input,select{font:inherit}.access-layout{min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr}.access-story{padding:56px;display:flex;flex-direction:column;justify-content:space-between;background:var(--green);color:#fff}.brand{display:flex;align-items:center;gap:14px}.brand>span{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:#fff;color:var(--green);font:700 24px Georgia}.access-story h1{max-width:700px;font:700 clamp(38px,5vw,72px)/1 Georgia;margin:18px 0}.access-story p{font-size:18px;line-height:1.55;max-width:680px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:13px;font-weight:800}.access-card{padding:clamp(36px,8vw,110px);display:flex;flex-direction:column;justify-content:center;background:#fff}.access-card h2{font:700 40px Georgia;margin:8px 0 28px}.access-card form{display:grid;gap:18px}.access-card label{display:grid;gap:8px;font-weight:700}.access-card input,.access-card select{width:100%;padding:15px;border:1px solid var(--line);border-radius:12px;background:#fff}.access-card button{border:0;border-radius:12px;padding:16px 20px;background:var(--orange);color:#fff;font-weight:800;display:flex;justify-content:space-between}.form-error,.field-error{color:#9c2f1e}.secondary-link{margin-top:22px}.secondary-link a{color:var(--green);font-weight:700}.messages{position:fixed;z-index:10;top:16px;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);padding:10px 20px;border-radius:10px}.topbar{height:84px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px}.logout{border:1px solid var(--line);background:#fff;padding:10px 15px;border-radius:9px}.dashboard{min-height:calc(100vh - 84px);display:grid;grid-template-columns:320px 1fr}.dashboard aside{padding:36px;border-right:1px solid var(--line)}.dashboard>section{padding:clamp(36px,6vw,90px)}.dashboard h1{font:700 clamp(38px,5vw,70px)/1 Georgia;margin:12px 0}.status-card{margin-top:40px;padding:28px;border-radius:18px;background:#fff;border-left:6px solid var(--green)}.status-card b{font-size:20px}.status-card p{font-size:16px;line-height:1.5}@media(max-width:800px){.access-layout{grid-template-columns:1fr}.access-story{min-height:42vh;padding:28px}.access-story h1{font-size:42px}.access-card{padding:34px 24px}.dashboard{grid-template-columns:1fr}.dashboard aside{border-right:0;border-bottom:1px solid var(--line)}.topbar strong{font-size:13px}}

a{color:inherit}.brand-dark{text-decoration:none}.brand-dark>span{background:var(--green);color:#fff}.topnav{display:flex;align-items:center;gap:20px}.topnav a{font-weight:700;text-decoration:none}.topnav form{margin:0}.course-layout{min-height:calc(100vh - 84px);display:grid;grid-template-columns:340px 1fr}.course-sidebar{padding:30px 24px;background:#ece9df;border-right:1px solid var(--line);overflow:auto}.start-link{display:block;padding:15px 16px;margin:16px 0 24px;border-radius:12px;background:#fff;text-decoration:none;font-weight:800}.course-sidebar details{border-top:1px solid #cbc7bb;padding:16px 0}.course-sidebar summary{display:grid;grid-template-columns:34px 1fr;gap:3px 10px;cursor:pointer;list-style:none}.course-sidebar summary span{grid-row:1/3;color:#747b76;font-weight:800}.course-sidebar summary small{color:#6f756f}.course-sidebar ol{margin:14px 0 0 44px;padding:0;list-style:none}.course-sidebar li{padding:8px 0;font-size:14px;line-height:1.35}.course-sidebar .results-item{font-weight:800;color:var(--green)}.course-main{padding:50px clamp(30px,6vw,90px)}.course-main h1,.page-intro h1{font:700 clamp(42px,5vw,72px)/1 Georgia;margin:10px 0}.student-meta{font-size:17px}.progress-card{margin:30px 0;padding:24px;background:var(--green);color:#fff;border-radius:18px}.progress-card>div:first-child{display:flex;justify-content:space-between}.progress-card strong{font-size:24px}.progress-track{height:10px;background:#dcded8;border-radius:999px;overflow:hidden;margin:15px 0}.progress-track span{display:block;height:100%;background:var(--orange);border-radius:inherit}.progress-card p{margin-bottom:0}.dashboard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.dashboard-grid .status-card{margin-top:0}.status-card h2{font:700 28px Georgia}.button-link{display:inline-block;margin-top:10px;padding:13px 18px;border-radius:10px;background:var(--orange);color:#fff;text-decoration:none;font-weight:800}.text-link{color:var(--green);font-weight:800}.section-heading{margin-top:48px;font:700 34px Georgia}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.module-card{display:grid;grid-template-columns:54px 1fr;gap:16px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px}.module-number{font:700 24px Georgia;color:var(--green)}.module-card h3{margin:0;font-size:19px}.module-card p{color:#626963}.progress-track.small{height:7px;margin:10px 0 0}.form-page{max-width:1120px;margin:auto;padding:60px 30px;display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.page-intro p{font-size:18px;line-height:1.55}.project-form-card{background:#fff;padding:32px;border-radius:20px;border:1px solid var(--line)}.project-form-card form{display:grid;gap:20px}.project-form-card label{display:grid;gap:8px;font-weight:800}.project-form-card input,.project-form-card textarea{width:100%;padding:14px;border:1px solid var(--line);border-radius:10px}.project-form-card small{font-weight:400;color:#697069;line-height:1.4}.project-form-card button,.filters button,.user-row button{border:0;border-radius:10px;padding:13px 17px;background:var(--orange);color:#fff;font-weight:800}.admin-page{padding:45px clamp(24px,5vw,70px)}.filters{display:grid;grid-template-columns:2fr repeat(4,1fr) auto;gap:10px;margin:30px 0}.filters input,.filters select{min-width:0;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff}.user-list{display:grid;gap:10px}.user-row{display:grid;grid-template-columns:1.2fr 1.5fr .8fr .8fr auto;align-items:center;gap:20px;background:#fff;padding:20px;border:1px solid var(--line);border-radius:14px}.user-row h3,.user-row p{margin:3px 0}.user-row p{color:#687069}.status{display:inline-block;padding:8px 10px;border-radius:999px;font-size:13px;font-weight:800}.status-pending{background:#fff0c2}.status-active{background:#dff2b1}.status-blocked,.status-archived{background:#f7d0c8}.user-row .button-muted{background:#303d37}.empty-state{padding:40px;text-align:center;background:#fff;border-radius:14px}

@media(max-width:1000px){.course-layout{grid-template-columns:280px 1fr}.dashboard-grid,.module-grid{grid-template-columns:1fr}.filters{grid-template-columns:repeat(2,1fr)}.user-row{grid-template-columns:1fr 1fr}.form-page{grid-template-columns:1fr}}
@media(max-width:800px){.course-layout{grid-template-columns:1fr}.course-sidebar{border-right:0}.topbar{height:auto;min-height:84px;padding:12px 16px;flex-wrap:wrap;align-content:center;gap:8px}.topbar .brand{min-width:0;flex:1}.topbar .brand>span{width:42px;height:42px;flex:0 0 42px}.topbar strong{font-size:13px;line-height:1.25}.topnav{width:100%;gap:8px;flex-wrap:wrap;padding-top:5px}.topnav a{display:inline-flex;align-items:center;min-height:40px;padding:9px 12px;border-radius:9px;background:var(--paper);white-space:nowrap}.topnav form{flex:0 0 auto}.topnav .logout{min-height:40px;white-space:nowrap}.course-main{padding:32px 20px}.user-row{grid-template-columns:1fr}.filters{grid-template-columns:1fr}}

.course-sidebar a,.lesson-sidebar a{text-decoration:none}.lesson-layout{display:grid;grid-template-columns:290px minmax(0,1fr);min-height:calc(100vh - 84px)}.lesson-sidebar{padding:28px 20px;background:#ece9df;border-right:1px solid var(--line);overflow:auto}.back-link{display:block;margin-bottom:22px;font-weight:800;color:var(--green)}.lesson-sidebar details{border-top:1px solid #cbc7bb;padding:14px 0}.lesson-sidebar summary{cursor:pointer;font-weight:800}.lesson-sidebar ol{list-style:none;padding:8px 0 0;margin:0}.lesson-sidebar li a{display:block;padding:9px 12px;border-radius:9px;font-size:14px;line-height:1.35}.lesson-sidebar li.active a{background:var(--green);color:#fff}.lesson-content{width:min(920px,100%);padding:55px clamp(25px,5vw,75px);margin:0 auto}.lesson-heading h1{font:700 clamp(44px,6vw,76px)/.98 Georgia;margin:15px 0}.lesson-heading>p:not(.eyebrow){font-size:20px;line-height:1.55;color:#4f5953}.lesson-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.lesson-badges span{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:800}.lesson-section{margin-top:44px;padding:34px;background:#fff;border:1px solid var(--line);border-radius:20px}.lesson-section h2,.completion-card h2{font:700 34px Georgia;margin:8px 0 24px}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-grid article{display:flex;align-items:center;gap:12px;padding:18px;background:var(--paper);border-radius:12px}.topic-grid span{color:var(--green);font:700 17px Georgia}.result-callout{display:grid;gap:8px;margin-top:20px;padding:22px;border-radius:12px;background:var(--green);color:#fff}.result-callout small{text-transform:uppercase;letter-spacing:.1em}.result-callout strong{font:700 24px Georgia}.prompt-section{background:#15241e;color:#fff}.prompt-section>h2{color:#fff}.prompt-card{margin-top:18px;padding:24px;border:1px solid #50615a;border-radius:15px;background:#1c3028}.prompt-card-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:15px}.prompt-card-head span{font-weight:800}.prompt-card-head em{font-style:normal;color:#cce87d;font-size:13px}.prompt-card>p{font-size:17px;line-height:1.6;white-space:pre-line}.prompt-buttons,.dialog-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.prompt-buttons button,.dialog-actions button,.lesson-work-form button,.completion-card button{border:0;border-radius:10px;padding:13px 17px;background:var(--orange);color:#fff;font-weight:800}.prompt-buttons .secondary,.dialog-actions .secondary{background:#fff;color:var(--ink)}.book-dialog{width:min(900px,calc(100% - 30px));max-height:90vh;padding:35px;border:0;border-radius:20px;color:var(--ink)}.book-dialog::backdrop{background:rgba(9,20,15,.76)}.dialog-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:32px}.book-dialog h2{font:700 36px Georgia;padding-right:30px}.sent-prompt{padding:20px;background:#edf0e8;border-radius:12px}.sent-prompt small{font-weight:800;text-transform:uppercase}.book-answer{font-size:16px;line-height:1.6}.book-answer h3{font:700 25px Georgia;margin-top:30px}.book-list{display:grid;grid-template-columns:18px 1fr;gap:8px}.book-list p{margin:4px 0}.book-table-wrap{overflow:auto}.book-table-wrap table{width:100%;border-collapse:collapse}.book-table-wrap th,.book-table-wrap td{padding:10px;border:1px solid var(--line);text-align:left;vertical-align:top}.lesson-work-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}.lesson-work-form label{display:grid;gap:9px;font-weight:800}.lesson-work-form textarea{width:100%;min-height:180px;padding:15px;border:1px solid var(--line);border-radius:12px;resize:vertical;font:inherit;line-height:1.5}.lesson-work-form button{grid-column:1/-1;justify-self:start}.project-warning{padding:16px;margin-bottom:20px;background:#fff0c2;border-radius:10px}.project-warning a{font-weight:800;color:var(--green)}.completion-card{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:25px;padding:28px;background:#e6efcf;border-radius:18px}.completion-card h2{margin:6px 0 0}.completion-card .button-muted{background:#39453f}.lesson-pagination{display:flex;justify-content:space-between;gap:20px;margin-top:30px}.lesson-pagination a{max-width:46%;color:var(--green);font-weight:800;text-decoration:none}.textbook-page{width:min(980px,calc(100% - 40px));margin:0 auto;padding:55px 0}.textbook-project{margin:35px 0;padding:32px;background:var(--green);color:#fff;border-radius:20px}.textbook-project h2{font:700 34px Georgia}.textbook-project dl{display:grid;grid-template-columns:1fr 1fr;gap:18px}.textbook-project dl div{padding:18px;background:rgba(255,255,255,.09);border-radius:12px}.textbook-project dt{font-weight:800}.textbook-project dd{margin:8px 0 0;line-height:1.5}.textbook-chapters{display:grid;gap:20px}.textbook-chapters>article{padding:30px;background:#fff;border:1px solid var(--line);border-radius:18px}.textbook-chapters h2{font:700 30px Georgia}.textbook-chapters h2 a{text-decoration:none}.textbook-chapters h3{margin-top:25px;color:var(--green)}.textbook-chapters p{line-height:1.6}
@media(max-width:850px){.lesson-layout{grid-template-columns:1fr}.lesson-sidebar{max-height:320px;border-right:0;border-bottom:1px solid var(--line)}.lesson-content{padding:35px 20px}.topic-grid,.lesson-work-form,.textbook-project dl{grid-template-columns:1fr}.completion-card{align-items:flex-start;flex-direction:column}.lesson-pagination{flex-direction:column}.lesson-pagination a{max-width:100%}}

.save-row{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}.save-row button{grid-column:auto}.save-row span{color:#687069;font-size:14px}.textbook-header{display:flex;justify-content:space-between;align-items:flex-end;gap:25px}.textbook-actions{display:flex;gap:10px;flex-shrink:0}.textbook-actions a,.textbook-actions button{padding:13px 16px;border:0;border-radius:10px;background:var(--green);color:#fff;text-decoration:none;font:700 14px Arial;cursor:pointer}.textbook-actions button{background:var(--orange)}.results-page{width:min(980px,calc(100% - 40px));margin:0 auto;padding:55px 0}.module-progress-card{margin:35px 0;padding:26px;background:var(--green);color:#fff;border-radius:18px}.module-progress-card>div:first-child{display:flex;justify-content:space-between;align-items:end}.module-progress-card span{font-weight:800}.module-progress-card strong{font-size:34px}.result-lessons{display:grid;gap:12px}.result-lessons article{display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:18px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:15px}.result-status{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#e9e7df;font-weight:800}.result-status.done{background:#dff2b1;color:var(--green);font-size:22px}.result-lessons h2{margin:0;font-size:20px}.result-lessons h2 a{text-decoration:none}.result-lessons p{margin:7px 0;color:#5f6862}.result-lessons small{color:var(--green);font-weight:700}.result-label{padding:8px 11px;border-radius:999px;background:#f0eee7;font-size:13px;white-space:nowrap}.results-footer{display:flex;justify-content:space-between;gap:15px;margin-top:30px}.results-footer a{color:var(--green);font-weight:800;text-decoration:none}
@media(max-width:700px){.textbook-header{align-items:flex-start;flex-direction:column}.result-lessons article{grid-template-columns:46px 1fr}.result-label{grid-column:2}.results-footer{flex-direction:column}}
@media print{.topbar,.textbook-actions{display:none}.textbook-page{width:100%;padding:0}.textbook-project,.textbook-chapters>article{break-inside:avoid}.textbook-project{background:#fff;color:#000;border:1px solid #999}.textbook-project dl div{border:1px solid #ccc}}

.activity-section{background:#f2f6e7}.quiz-options{display:grid;gap:10px}.quiz-options button{display:grid;grid-template-columns:38px 1fr;align-items:center;gap:12px;width:100%;padding:15px;text-align:left;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-weight:700}.quiz-options button span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#eceae2}.quiz-options button.selected{border-color:#8b948e}.quiz-options button.correct{border-color:var(--green);background:#e0f1e3}.quiz-options button.wrong{border-color:#b94a38;background:#f8ded8}.quiz-explanation{margin-top:15px;padding:18px;border-left:5px solid var(--green);background:#fff;border-radius:10px}.quiz-explanation p{margin-bottom:0;line-height:1.5}.case-card{margin-top:30px;padding:25px;background:#fff;border-radius:15px}.case-card h3{font:700 27px Georgia}.case-card>p:not(.eyebrow){font-size:17px;line-height:1.55}.case-card label{display:grid;gap:8px;margin-top:20px;font-weight:800}.case-card textarea{padding:14px;border:1px solid var(--line);border-radius:10px;font:inherit;resize:vertical}.case-card details{margin-top:18px}.case-card summary{cursor:pointer;color:var(--green);font-weight:800}.case-errors{display:grid;gap:10px;margin-top:15px}.case-errors article{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:15px;background:var(--paper);border-radius:10px}.case-errors article>span{font:700 17px Georgia;color:var(--green)}.case-errors p{margin:5px 0 0;line-height:1.45}

.admin-title-row,.student-card-head,.section-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.admin-title-row .button-link{margin-top:35px}.user-row h3 a{text-decoration:none}.row-actions{display:flex;align-items:center;gap:10px}.row-actions>a{color:var(--green);font-weight:800;text-decoration:none}.row-actions form{margin:0}.pagination{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:24px;padding:18px 0}.pagination div{display:flex;gap:18px}.pagination a{color:var(--green);font-weight:800;text-decoration:none}.admin-form-page{width:min(1100px,calc(100% - 40px));margin:0 auto;padding:55px 0;display:grid;grid-template-columns:.8fr 1.2fr;gap:55px}.admin-form-card,.admin-section{padding:30px;background:#fff;border:1px solid var(--line);border-radius:18px}.admin-form-card form{display:grid;gap:18px}.admin-form-card label{display:grid;gap:8px;font-weight:800}.admin-form-card input,.admin-form-card select{width:100%;padding:13px;border:1px solid var(--line);border-radius:10px;background:#fff}.admin-form-card small{font-weight:400;color:#687069;line-height:1.4}.form-actions{display:flex;align-items:center;gap:18px;margin-top:8px}.form-actions button,.danger-actions button{border:0;border-radius:10px;padding:13px 17px;background:var(--orange);color:#fff;font-weight:800}.form-actions a{color:var(--green);font-weight:800}.admin-detail-page{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:50px 0}.student-card-head h1{font:700 clamp(40px,5vw,68px)/1 Georgia;margin:10px 0}.student-card-head p{color:#616a64}.student-card-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.student-card-actions a{padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--green);font-weight:800;text-decoration:none}.admin-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:32px 0}.admin-summary-grid article{padding:24px;background:var(--green);color:#fff;border-radius:16px}.admin-summary-grid small{display:block;text-transform:uppercase;letter-spacing:.08em;opacity:.75}.admin-summary-grid b{display:block;margin-top:15px;font:700 25px Georgia}.admin-summary-grid p{margin:8px 0 0}.admin-section{margin-top:18px}.admin-section h2{font:700 31px Georgia;margin:8px 0 22px}.danger-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.danger-actions form{display:flex;gap:8px;margin:0}.danger-actions input{padding:12px;border:1px solid var(--line);border-radius:9px}.danger-actions .button-dark{background:#303d37}.danger-actions .button-danger{background:#9c2f1e}.project-readonly{display:grid;grid-template-columns:1fr 1fr;gap:12px}.project-readonly div{padding:18px;background:var(--paper);border-radius:11px}.project-readonly dt{font-weight:800}.project-readonly dd{margin:8px 0 0;line-height:1.5}.admin-module-progress{display:grid;grid-template-columns:1fr 1fr;gap:12px}.admin-module-progress article{padding:17px;background:var(--paper);border-radius:11px}.admin-module-progress article>div:first-child{display:flex;justify-content:space-between;gap:15px}.audit-mini-list{display:grid;gap:8px}.audit-mini-list article{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-top:1px solid var(--line)}.audit-mini-list span{color:#687069}.audit-filters{grid-template-columns:2fr 1fr auto}.audit-list{display:grid;gap:8px}.audit-list article{display:grid;grid-template-columns:145px 1fr 1fr 1fr 1.5fr;gap:15px;align-items:center;padding:16px;background:#fff;border:1px solid var(--line);border-radius:11px}.audit-list time,.audit-list small{color:#687069}.audit-list a{color:var(--green);font-weight:800}.button-muted:empty{display:none}
@media(max-width:950px){.admin-form-page{grid-template-columns:1fr}.admin-summary-grid{grid-template-columns:1fr}.admin-module-progress{grid-template-columns:1fr}.audit-list article{grid-template-columns:1fr 1fr}.audit-list small{grid-column:1/-1}.student-card-head,.admin-title-row{flex-direction:column}.admin-title-row .button-link{margin-top:0}.student-card-actions{justify-content:flex-start}.project-readonly{grid-template-columns:1fr}}
@media(max-width:650px){.danger-actions form{width:100%;flex-direction:column}.danger-actions input{width:100%}.audit-list article{grid-template-columns:1fr}.audit-list small{grid-column:auto}.pagination{align-items:flex-start;flex-direction:column}.admin-form-page,.admin-detail-page{width:min(100% - 28px,1120px)}}
.lesson-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:42px;padding:7px;background:#e3e0d5;border:1px solid var(--line);border-radius:16px}.lesson-tabs button{min-height:58px;padding:12px 16px;border:0;border-radius:11px;background:transparent;color:var(--ink);font:800 15px/1.25 inherit;cursor:pointer}.lesson-tabs button:hover{background:rgba(255,255,255,.55)}.lesson-tabs button[aria-selected=true]{background:var(--green);color:#fff;box-shadow:0 6px 16px rgba(20,69,52,.18)}.lesson-tabs button:focus-visible{outline:3px solid var(--orange);outline-offset:2px}.lesson-tab-panel[hidden]{display:none}.lesson-tabs+.lesson-section,.lesson-tab-panel>.lesson-section:first-child{margin-top:18px}.dialog-actions [data-add-answer]{background:var(--green)}.dialog-actions [data-add-answer]:disabled{background:#65736c;cursor:default}
@media(max-width:650px){.lesson-tabs{grid-template-columns:1fr}.lesson-tabs button{min-height:48px}.book-dialog{padding:28px 20px}.dialog-actions{flex-direction:column}.dialog-actions button{width:100%}}

.student-work-list{display:grid;gap:9px}.student-work-list article{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:17px;background:var(--paper);border-radius:11px}.student-work-list small,.student-work-list b{display:block}.student-work-list b{margin-top:5px}.student-work-list p{margin:6px 0 0;color:#687069}.student-work-list a{flex-shrink:0;color:var(--green);font-weight:800;text-decoration:none}.history-page{width:min(1000px,calc(100% - 40px));margin:0 auto;padding:55px 0}.current-work-card{margin:30px 0;padding:28px;background:var(--green);color:#fff;border-radius:18px}.current-work-card h2,.revision-list>h2{font:700 32px Georgia;margin:8px 0 20px}.current-work-card .section-title-row>span{font-size:13px;opacity:.75}.revision-content{display:grid;grid-template-columns:1fr 1fr;gap:12px}.revision-content article{padding:18px;background:rgba(255,255,255,.1);border-radius:11px}.revision-content p{margin:8px 0 0;line-height:1.55;overflow-wrap:anywhere}.revision-list{margin-top:38px}.revision-card{margin-top:14px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:16px}.revision-card>header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}.revision-card>header span,.revision-card>header b,.revision-card>header time,.revision-card>header small{display:block}.revision-card>header span{color:var(--green);font-weight:800}.revision-card>header b{margin-top:5px}.revision-card>header div:last-child{text-align:right;color:#687069}.revision-card .revision-content{margin:16px 0}.revision-card .revision-content article{background:var(--paper)}.revision-card form{text-align:right}.revision-card button{border:0;border-radius:9px;padding:11px 14px;background:var(--green);color:#fff;font-weight:800}.revision-card:first-of-type{border-left:5px solid var(--green)}
@media(max-width:700px){.student-work-list article{align-items:flex-start;flex-direction:column}.revision-content{grid-template-columns:1fr}.revision-card>header{flex-direction:column}.revision-card>header div:last-child{text-align:left}.history-page{width:min(100% - 28px,1000px)}}

/* Visual refresh: bright digital editorial style */
:root{
  --green:#16133d;
  --ink:#17152c;
  --paper:#f5f4fb;
  --line:#d9d5e8;
  --orange:#f02b86;
  --violet:#8a5cf6;
  --blue:#1467d8;
  --cyan:#35d2e5;
  --surface:#fff;
  --muted:#69657c;
  --display-gradient:linear-gradient(112deg,#ff287d 0%,#a358f3 48%,#126ad8 100%);
  --button-gradient:linear-gradient(110deg,#f02b86 0%,#8a5cf6 100%);
  --shadow:0 20px 55px rgba(36,23,87,.12);
}
html{scroll-behavior:smooth}
body{
  font-family:"Manrope","Segoe UI",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 92% 2%,rgba(53,210,229,.17),transparent 28rem),
    radial-gradient(circle at 38% 0,rgba(240,43,134,.12),transparent 25rem),
    var(--paper);
}
button,input,select,textarea{font-family:inherit}
::selection{background:#d9c4ff;color:#17152c}
.eyebrow{color:#7857c8;letter-spacing:.14em;font-size:12px}

.topbar{
  position:relative;
  z-index:5;
  height:92px;
  padding:0 32px;
  color:#fff;
  border:0;
  background:linear-gradient(105deg,#17132e 0%,#3d1c68 52%,#0b4f94 100%);
  box-shadow:0 12px 35px rgba(24,18,63,.2);
}
.brand-dark{color:#fff}
.brand-dark>span{
  color:#fff;
  background:var(--display-gradient);
  border-radius:50%;
  box-shadow:0 0 0 5px rgba(255,255,255,.12);
  font-family:inherit;
  font-weight:800;
}
.topnav{gap:9px}
.topnav a,.topnav .logout{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:10px 16px;
  color:#fff;
  border:1px solid rgba(255,255,255,.3);
  border-radius:999px;
  background:rgba(255,255,255,.1);
  backdrop-filter:blur(12px);
  transition:transform .2s ease,background .2s ease;
}
.topnav a:hover,.topnav .logout:hover{transform:translateY(-2px);background:rgba(255,255,255,.2)}

.course-layout,.lesson-layout{min-height:calc(100vh - 92px)}
.course-sidebar,.lesson-sidebar{
  color:#fff;
  border:0;
  background:
    radial-gradient(circle at 15% 8%,rgba(240,43,134,.5),transparent 13rem),
    radial-gradient(circle at 95% 45%,rgba(53,210,229,.32),transparent 18rem),
    linear-gradient(160deg,#21123d 0%,#271856 48%,#063d78 100%);
}
.course-sidebar .eyebrow{color:#e7dcff}
.start-link{color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(10px)}
.course-sidebar details,.lesson-sidebar details{border-color:rgba(255,255,255,.18)}
.course-sidebar summary span,.course-sidebar summary small{color:#d7d1e5}
.course-sidebar .results-item,.back-link{color:#69e6f2}
.lesson-sidebar li a{color:#f1edf8}
.lesson-sidebar li.active a{background:var(--button-gradient);box-shadow:0 10px 24px rgba(240,43,134,.28)}

.course-main{position:relative;overflow:hidden}
.course-main:before{
  content:"";
  position:absolute;
  z-index:-1;
  top:-170px;
  right:-130px;
  width:440px;
  height:440px;
  border-radius:46% 54% 64% 36%;
  background:linear-gradient(135deg,rgba(240,43,134,.18),rgba(138,92,246,.2),rgba(53,210,229,.16));
  filter:blur(2px);
  transform:rotate(18deg);
}
.course-main h1,.page-intro h1,.lesson-heading h1,.student-card-head h1{
  font-family:inherit;
  font-weight:500;
  letter-spacing:-.055em;
  line-height:.98;
}
.course-main h1{max-width:850px;font-size:clamp(48px,6vw,86px)}
.student-meta,.lesson-heading>p:not(.eyebrow),.module-card p,.result-lessons p{color:var(--muted)}

.progress-card,.module-progress-card,.textbook-project,.current-work-card{
  position:relative;
  overflow:hidden;
  background:var(--display-gradient);
  border-radius:28px;
  box-shadow:0 24px 55px rgba(107,58,193,.22);
}
.progress-card:after,.module-progress-card:after,.textbook-project:after,.current-work-card:after{
  content:"";
  position:absolute;
  width:190px;
  height:190px;
  right:-50px;
  top:-75px;
  border-radius:50%;
  border:38px solid rgba(255,255,255,.14);
}
.progress-track{background:rgba(255,255,255,.32)}
.progress-track span{background:#fff}
.module-card .progress-track,.admin-module-progress .progress-track{background:#e5e1ee}
.module-card .progress-track span,.admin-module-progress .progress-track span{background:var(--button-gradient)}

.status-card,.module-card,.lesson-section,.project-form-card,.admin-form-card,.admin-section,
.textbook-chapters>article,.result-lessons article,.revision-card,.user-row,.case-card{
  border:1px solid rgba(101,78,157,.14);
  border-radius:24px;
  background:rgba(255,255,255,.9);
  box-shadow:var(--shadow);
}
.status-card{border-left:0}
.status-card h2,.section-heading,.lesson-section h2,.completion-card h2,.case-card h3,
.admin-section h2,.textbook-project h2,.textbook-chapters h2,.current-work-card h2,.revision-list>h2{
  font-family:inherit;
  letter-spacing:-.035em;
}
.module-card{padding:25px;transition:transform .2s ease,box-shadow .2s ease}
.module-card:hover{transform:translateY(-4px);box-shadow:0 24px 65px rgba(50,31,107,.17)}
.module-number{font-family:inherit;color:#f02b86;font-size:20px;font-weight:800}
.text-link,.results-footer a,.row-actions>a,.pagination a,.audit-list a,.student-work-list a,.case-card summary{color:#6f42d7}
.button-link,.project-form-card button,.filters button,.user-row button,.prompt-buttons button,
.dialog-actions button,.lesson-work-form button,.completion-card button,.form-actions button,.danger-actions button{
  border:0;
  border-radius:999px;
  background:var(--button-gradient);
  box-shadow:0 10px 24px rgba(224,38,132,.2);
}
.button-link:hover,.project-form-card button:hover,.prompt-buttons button:hover,.dialog-actions button:hover{filter:brightness(1.08)}

.lesson-tabs{padding:6px;background:#e9e5f2;border-color:#dcd5ec;border-radius:999px}
.lesson-tabs button{border-radius:999px}
.lesson-tabs button[aria-selected=true]{background:var(--button-gradient);box-shadow:0 8px 22px rgba(162,65,194,.27)}
.lesson-section{padding:38px}
.topic-grid article,.case-errors article,.project-readonly div,.admin-module-progress article,.revision-card .revision-content article{background:#f3f1f9}
.topic-grid span,.case-errors article>span{color:#e52883;font-family:inherit}
.result-callout{background:linear-gradient(115deg,#25133f,#0c5896);border-radius:18px}
.result-callout strong{font-family:inherit}
.prompt-section{background:linear-gradient(135deg,#17132f 0%,#3b1b69 56%,#07549a 100%);box-shadow:0 24px 60px rgba(31,21,73,.25)}
.prompt-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);border-radius:20px}
.prompt-card-head em{color:#75e8f1}
.book-dialog{border-radius:28px;box-shadow:0 30px 90px rgba(22,14,58,.35)}
.book-dialog h2,.book-answer h3{font-family:inherit;letter-spacing:-.03em}
.book-dialog::backdrop{background:rgba(18,12,43,.78);backdrop-filter:blur(8px)}
.sent-prompt{background:#f1edf9}
.activity-section{background:linear-gradient(145deg,#f8f5ff,#eefbfc)}
.quiz-options button.selected{border-color:#8a5cf6}.quiz-options button.correct{border-color:#2c9e76;background:#e1f6ee}
.completion-card{border-radius:22px;background:linear-gradient(120deg,#e6fbfa,#eee6ff)}
.status-active{background:#d8f5ec;color:#17644e}.status-pending{background:#fff0ce}.status-blocked,.status-archived{background:#ffe0e9;color:#98214f}

.access-story{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 80% 22%,rgba(53,210,229,.75),transparent 16rem),
    radial-gradient(circle at 26% 70%,rgba(240,43,134,.85),transparent 20rem),
    linear-gradient(145deg,#21113e,#7130a0 52%,#075a9e);
}
.access-story:after{content:"";position:absolute;width:52vw;height:52vw;max-width:650px;max-height:650px;right:-18%;top:10%;border:70px solid rgba(255,255,255,.17);border-radius:50%}
.access-story>*{position:relative;z-index:1}
.access-story .eyebrow{color:#fff;opacity:.78}
.access-story h1,.access-card h2{font-family:inherit;letter-spacing:-.055em;font-weight:500}
.access-card{background:rgba(255,255,255,.96)}
.access-card input,.access-card select,.project-form-card input,.project-form-card textarea,.admin-form-card input,.admin-form-card select,.filters input,.filters select,.lesson-work-form textarea,.case-card textarea{
  border:1px solid #dcd6e9;
  border-radius:15px;
  background:#fbfaff;
}
.access-card input:focus,.access-card select:focus,.project-form-card input:focus,.project-form-card textarea:focus,.lesson-work-form textarea:focus{
  outline:3px solid rgba(138,92,246,.2);
  border-color:#8a5cf6;
}
.access-card button{border-radius:999px;background:var(--button-gradient);box-shadow:0 12px 30px rgba(224,38,132,.22)}
.secondary-link a{color:#6f42d7}
.messages{border:1px solid rgba(138,92,246,.2);border-radius:16px;box-shadow:var(--shadow)}

@media(max-width:800px){
  .topbar{padding:13px 15px;gap:10px}
  .topbar .brand>span{width:40px;height:40px;flex-basis:40px}
  .topbar strong{font-size:12px;max-width:230px}
  .topnav a,.topnav .logout{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);min-height:38px;padding:8px 11px;font-size:13px}
  .course-main h1{font-size:clamp(43px,14vw,62px)}
  .course-sidebar,.lesson-sidebar{background:linear-gradient(135deg,#21123d,#173c75)}
  .course-sidebar{max-height:48vh;overflow:auto;border-bottom:1px solid rgba(255,255,255,.18)}
  .lesson-section{padding:24px 20px}
}

/* Student images stored in private S3 */
.profile-nav-link{gap:8px}
.profile-nav-avatar{display:inline-grid;place-items:center;width:30px;height:30px;flex:0 0 30px;border:2px solid rgba(255,255,255,.72);border-radius:50%;overflow:hidden;background:linear-gradient(135deg,#ff287d,#705cf6);color:#fff;font-size:12px;font-weight:800}
.profile-nav-avatar img{display:block;width:100%;height:100%;object-fit:cover}
.student-image-panel{display:grid;gap:12px;margin:-7px 0 21px;padding:16px;border:1px solid #ddd7eb;border-radius:18px;background:#f6f3fb}
.student-image-panel-head{display:flex;align-items:center;justify-content:space-between;gap:18px}
.student-image-panel-head>div:first-child{display:grid;gap:4px}
.student-image-panel-head small,.student-image-panel>small{color:var(--muted);line-height:1.5}
.student-image-controls{display:flex;align-items:center;justify-content:flex-end;gap:9px;flex-wrap:wrap}
.student-image-controls input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.student-image-controls label,.student-image-controls button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;margin:0;padding:9px 15px;border:0;border-radius:999px;font-size:13px;font-weight:800;cursor:pointer}
.student-image-controls label{border:1px solid #8a5cf6;color:#6238c4;background:#fff}
.student-image-controls button{color:#fff;background:var(--button-gradient);box-shadow:0 8px 20px rgba(224,38,132,.18)}
.student-image-controls button:disabled,.student-image-card button:disabled{opacity:.55;cursor:wait}
.student-image-status{min-height:20px;margin:0;color:#256c56;font-size:13px;font-weight:700}
.student-image-status.is-error{color:#a41f4d}
.student-image-gallery{display:flex;gap:12px;flex-wrap:wrap}
.student-image-card{position:relative;width:150px;margin:0;border:1px solid #d7d0e7;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 8px 20px rgba(36,23,87,.1)}
.student-image-card a{display:block;aspect-ratio:4/3;background:#ece8f5}
.student-image-card img{display:block;width:100%;height:100%;object-fit:cover}
.student-image-card button{position:absolute;right:7px;bottom:7px;min-height:0;padding:7px 10px;border:0;border-radius:999px;color:#fff;background:rgba(25,19,53,.86);font-size:11px;font-weight:800;box-shadow:none}
.profile-avatar-card{display:grid;grid-template-columns:minmax(220px,1fr) minmax(320px,1.5fr);gap:25px;margin-bottom:20px;padding:25px}
.profile-avatar-card .student-image-panel{margin:0}
.profile-avatar-card .student-image-card{width:140px;border-radius:50%;aspect-ratio:1}
.profile-avatar-card .student-image-card a{aspect-ratio:1}
.textbook-image-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:16px}
.textbook-image-gallery figure{margin:0}
.textbook-image-gallery a{display:block;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#f1eef8}
.textbook-image-gallery img{display:block;width:100%;height:auto;max-height:430px;object-fit:contain}
@media(max-width:700px){.student-image-panel-head{align-items:stretch;flex-direction:column}.student-image-controls{justify-content:stretch}.student-image-controls label,.student-image-controls button{flex:1}.profile-avatar-card{grid-template-columns:1fr}.student-image-card{width:128px}}
@media(max-width:650px){
  .lesson-tabs{border-radius:22px}
  .lesson-tabs button{border-radius:16px}
  .progress-card,.module-progress-card,.textbook-project,.current-work-card{border-radius:22px}
}

.textbook-chapter-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}
.textbook-chapter-head>div{min-width:0}
.textbook-editor{position:relative;margin:12px 0 8px}
.textbook-editor>summary{list-style:none;cursor:pointer;padding:10px 15px;border:1px solid #d7d0e7;border-radius:999px;color:#6f42d7;background:#f7f4fd;font-weight:800;font-size:14px}
.textbook-editor>summary::-webkit-details-marker{display:none}
.textbook-editor[open]{width:100%}
.textbook-editor[open]>summary{display:inline-flex;margin-bottom:16px}
.textbook-editor form{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:22px;border-radius:18px;background:#f3f0fa}
.textbook-editor label{display:grid;gap:8px;font-weight:800}
.textbook-editor textarea{width:100%;min-height:190px;padding:15px;border:1px solid #d7d0e7;border-radius:14px;background:#fff;font:inherit;font-weight:500;line-height:1.55;resize:vertical}
.textbook-editor textarea:focus{outline:3px solid rgba(138,92,246,.2);border-color:#8a5cf6}
.textbook-editor-actions{grid-column:1/-1}
.textbook-editor-actions button{border:0;border-radius:999px;padding:13px 18px;background:var(--button-gradient);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(224,38,132,.2)}
.student-note{margin-top:24px}
.student-note p{margin:10px 0;line-height:1.72;overflow-wrap:anywhere}
.student-note p+p{margin-top:16px}
@media(max-width:700px){.textbook-chapter-head{flex-wrap:wrap}.textbook-editor form{grid-template-columns:1fr}.textbook-editor-actions{grid-column:auto}}

/* Extended lesson content used by the MMT bonus module */
.lesson-rich-text,.author-materials-content{max-width:850px;margin:34px auto 0;font-size:17px;line-height:1.75}
.lesson-rich-text p,.author-materials-content p{margin:0 0 18px}
.lesson-rich-text h3,.author-materials-content h3{margin:30px 0 14px;font-size:24px;line-height:1.25}
.lesson-rich-text h4,.author-materials-content h4{margin:24px 0 10px;font-size:20px;line-height:1.35;color:var(--green)}
.lesson-figure{margin:30px 0 34px}
.lesson-figure a{display:block;border-radius:16px;overflow:hidden;background:#f5f7f8;border:1px solid var(--line);box-shadow:0 12px 30px rgba(9,20,15,.08)}
.lesson-figure img{display:block;width:100%;height:auto}
.lesson-figure figcaption{margin-top:12px;color:#4f5953;font-size:14px;line-height:1.55}
.case-task{margin:18px 0;padding:16px 18px;border-left:4px solid var(--violet);border-radius:0 14px 14px 0;background:#f1ecff}
.case-solution{margin-top:18px;padding:20px;border-radius:16px;background:#f3f1f9;line-height:1.7}
.case-solution p{margin:0}
.case-solution p+p{margin-top:16px}
.author-materials-section{background:linear-gradient(145deg,#fff,#f2faff)}
.author-credit{margin-top:-4px;color:var(--muted);font-weight:700}
.author-material-actions{display:flex;justify-content:flex-end;margin-top:28px}
.author-material-actions button{border:0;border-radius:999px;padding:13px 18px;background:var(--button-gradient);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(224,38,132,.2)}
.author-material-actions button:disabled{background:#65736c;box-shadow:none;cursor:default}
@media(max-width:650px){.lesson-rich-text,.author-materials-content{font-size:16px;line-height:1.68}.author-material-actions button{width:100%}}

/* Brand logo */
.brand>span{
  display:block;
  width:62px;
  height:56px;
  flex:0 0 62px;
  border-radius:12px;
  color:transparent!important;
  font-size:0!important;
  background:#fff url("../brand-logo.b7aa1f676ea0.png") center/contain no-repeat!important;
  box-shadow:0 0 0 4px rgba(255,255,255,.12),0 8px 22px rgba(10,7,39,.18);
}
.access-story .brand>span{width:112px;height:102px;flex-basis:112px;border-radius:18px}
@media(max-width:800px){
  .topbar .brand>span{width:52px;height:47px;flex-basis:52px}
  .access-story .brand>span{width:88px;height:80px;flex-basis:88px}
}


/* Student subsection pages use the available space beside the course menu. */
.lesson-layout--student > .lesson-content {
  width: 100%;
  min-width: 0;
}
@media (min-width: 851px) {
  .lesson-layout--student > .lesson-content {
    padding-inline: clamp(24px, 3vw, 56px);
  }
}